Or is it presumed your partner will love you regardless?
In fact, I have a theory that one of the reasons couples lose the desire to passionately kiss each other after many years together is because they do not make such a fuss over their breath.
Good sex is all about preparation and the little things that make a big difference. If you want to get romantic and think you might have bad breath, simply lick the inside of your wrist and sniff. If you do not like what you smell, immediately do something to alleviate the situation.
If nothing else make sure to keep a pack of Listerine PocketPaks at your bedside table when things start heating up…so they can stay heated up.